package com.cmj.service.impl;

import com.cmj.Utils.PathUtils;
import com.cmj.domain.ResponseResult;
import com.cmj.service.UploadImgServer;
import com.google.gson.Gson;
import com.qiniu.common.QiniuException;
import com.qiniu.http.Response;
import com.qiniu.storage.Configuration;
import com.qiniu.storage.Region;
import com.qiniu.storage.UploadManager;
import com.qiniu.storage.model.DefaultPutRet;
import com.qiniu.util.Auth;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.InputStream;

/**
 * 图片上传实现类
 */
@Service
@Data
@ConfigurationProperties(prefix = "oss")
public class UploadImgServerImpl implements UploadImgServer {
    /***
     * 图片上传到七牛云中
     * @param multipartFile 头像
     * @return 图片链接
     */
    @Override
    public ResponseResult uploadImg(MultipartFile multipartFile) {
        //判断图片类型
        //获取文件名
        String name = multipartFile.getOriginalFilename();
        if (!name.endsWith(".png")){
            throw new RuntimeException("文件不是图片或png");
        }

        //设置图片上传位置
        String path = PathUtils.generateFilePath(name);

        //获取图片链接
        String imgPath = uploadImgToOss(multipartFile, path);

        return ResponseResult.okResult(imgPath);
    }

    //...生成上传凭证，然后准备上传
    private String accessKey;
    private String secretKey;
    private String bucket;
    private String url;

    public String uploadImgToOss(MultipartFile multipartFile,String path){

        //构造一个带指定 Region 对象的配置类
        Configuration cfg = new Configuration(Region.autoRegion());
        //...其他参数参考类注释
        UploadManager uploadManager = new UploadManager(cfg);


        //默认不指定key的情况下，以文件内容的hash值作为文件名
        String key = path;

        try {

            InputStream inputStream = multipartFile.getInputStream();
            Auth auth = Auth.create(accessKey, secretKey);
            String upToken = auth.uploadToken(bucket);

            try {
                Response response = uploadManager.put(inputStream,key,upToken,null, null);
                //解析上传成功的结果
                DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
                System.out.println(putRet.key);
                System.out.println(putRet.hash);
                return url+key;
            } catch (QiniuException ex) {
                Response r = ex.response;
                System.err.println(r.toString());
                try {
                    System.err.println(r.bodyString());
                } catch (QiniuException ex2) {
                    //ignore
                }
            }
        } catch (Exception ex) {
            //ignore
        }
        return "false";
    }
}
